content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2012, by Object Refinery Limited and Contributors.
   *
   * Project Info:  http://www.jfree.org/jfreechart/index.html
   *
   * This library is free software; you can redistribute it and/or modify it
   * under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation; either version 2.1 of the License, or
   * (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
   * USA.
   *
   * [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
   * Other names may be trademarks of their respective owners.]
   *
   * ---------------
   * MonthTests.java
   * ---------------
   * (C) Copyright 2001-2008, by Object Refinery Limited.
   *
   * Original Author:  David Gilbert (for Object Refinery Limited);
   * Contributor(s):   -;
   *
   * Changes
   * -------
   * 16-Nov-2001 : Version 1 (DG);
   * 14-Feb-2002 : Order of parameters in Month(int, int) constructor
   *               changed (DG);
   * 26-Jun-2002 : Removed unnecessary import (DG);
   * 17-Oct-2002 : Fixed errors reported by Checkstyle (DG);
   * 13-Mar-2003 : Added serialization test (DG);
   * 21-Oct-2003 : Added hashCode test (DG);
   * 11-Jan-2005 : Added non-clonability test (DG);
   * 05-Oct-2006 : Added some new tests (DG);
   * 11-Jul-2007 : Fixed bad time zone assumption (DG);
   *
   */
  
  package org.jfree.data.time;
  
  import static org.jfree.chart.date.SerialDate.DATE_FORMAT_SYMBOLS;
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertFalse;
  import static org.junit.jupiter.api.Assertions.assertNull;
  import static org.junit.jupiter.api.Assertions.fail;
  
  import java.io.ByteArrayInputStream;
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.io.ObjectInput;
  import java.io.ObjectInputStream;
  import java.io.ObjectOutput;
  import java.io.ObjectOutputStream;
  import java.util.Calendar;
  import java.util.Date;
  import java.util.GregorianCalendar;
  import java.util.Locale;
  import java.util.TimeZone;
  import org.jfree.chart.date.MonthConstants;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  
  /**
   * Tests for the {@link Month} class.
   */
  public class MonthTest  {
  
      /** A month. */
      private Month jan1900;
  
      /** A month. */
      private Month feb1900;
  
      /** A month. */
      private Month nov9999;
  
      /** A month. */
      private Month dec9999;
  
  
  
  
  
      /**
       * Common test setup.
       */
      @BeforeEach
      public void setUp() {
          this.jan1900 = new Month(MonthConstants.JANUARY, 1900);
          this.feb1900 = new Month(MonthConstants.FEBRUARY, 1900);
          this.nov9999 = new Month(MonthConstants.NOVEMBER, 9999);
          this.dec9999 = new Month(MonthConstants.DECEMBER, 9999);
      }
  
      /**
       * Check that a Month instance is equal to itself.
       *
       * SourceForge Bug ID: 558850.
       */
      @Test
      public void testEqualsSelf() {
          Month month = new Month();
          assertEquals(month, month);
      }
  
      /**
       * Tests the equals method.
       */
      @Test
      public void testEquals() {
          Month m1 = new Month(MonthConstants.MAY, 2002);
          Month m2 = new Month(MonthConstants.MAY, 2002);
          assertEquals(m1, m2);
      }
  
      /**
       * In GMT, the end of Feb 2000 is java.util.Date(951,868,799,999L).  Use
       * this to check the Month constructor.
       */
      @Test
      public void testDateConstructor1() {
  
          TimeZone zone = TimeZone.getTimeZone("GMT");
          Calendar c = new GregorianCalendar(zone);
          Locale locale = Locale.UK;
          Month m1 = new Month(new Date(951868799999L), zone, locale);
          Month m2 = new Month(new Date(951868800000L), zone, locale);
  
          assertEquals(MonthConstants.FEBRUARY, m1.getMonth());
          assertEquals(951868799999L, m1.getLastMillisecond(c));
  
          assertEquals(MonthConstants.MARCH, m2.getMonth());
          assertEquals(951868800000L, m2.getFirstMillisecond(c));
  
      }
  
      /**
       * In Auckland, the end of Feb 2000 is java.util.Date(951,821,999,999L).
       * Use this to check the Month constructor.
       */
      @Test
      public void testDateConstructor2() {
  
          TimeZone zone = TimeZone.getTimeZone("Pacific/Auckland");
          Calendar c = new GregorianCalendar(zone);
          Month m1 = new Month(new Date(951821999999L), zone, Locale.UK);
          Month m2 = new Month(new Date(951822000000L), zone, Locale.UK);
  
          assertEquals(MonthConstants.FEBRUARY, m1.getMonth());
          assertEquals(951821999999L, m1.getLastMillisecond(c));
  
          assertEquals(MonthConstants.MARCH, m2.getMonth());
          assertEquals(951822000000L, m2.getFirstMillisecond(c));
  
      }
  
      /**
       * Set up a month equal to Jan 1900.  Request the previous month, it should
       * be null.
       */
      @Test
      public void testJan1900Previous() {
          Month previous = (Month) this.jan1900.previous();
          assertNull(previous);
      }
  
      /**
       * Set up a month equal to Jan 1900.  Request the next month, it should be
       * Feb 1900.
       */
      @Test
      public void testJan1900Next() {
          Month next = (Month) this.jan1900.next();
          assertEquals(this.feb1900, next);
      }
  
      /**
       * Set up a month equal to Dec 9999.  Request the previous month, it should
       * be Nov 9999.
       */
      @Test
      public void testDec9999Previous() {
          Month previous = (Month) this.dec9999.previous();
          assertEquals(this.nov9999, previous);
      }
  
      /**
       * Set up a month equal to Dec 9999.  Request the next month, it should be
       * null.
       */
      @Test
      public void testDec9999Next() {
          Month next = (Month) this.dec9999.next();
          assertNull(next);
      }
  
      /**
       * Tests the string parsing code...
       */
      @Test
      public void testParseMonth() {
  
          Month month = Month.parseMonth("1990-01");
  
          assertEquals(1, month.getMonth());
          assertEquals(1990, month.getYear().getYear());
  
          month = Month.parseMonth("02-1991");
  
          assertEquals(2, month.getMonth());
          assertEquals(1991, month.getYear().getYear());
  
          month = Month.parseMonth(DATE_FORMAT_SYMBOLS.getMonths()[2] + " 1993");
  
          assertEquals(3, month.getMonth());
          assertEquals(1993, month.getYear().getYear());
  
      }
  
      /**
       * Serialize an instance, restore it, and check for equality.
       */
      @Test
      public void testSerialization() throws IOException, ClassNotFoundException {
  
          Month m1 = new Month(12, 1999);
  
              ByteArrayOutputStream buffer = new ByteArrayOutputStream();
              ObjectOutput out = new ObjectOutputStream(buffer);
              out.writeObject(m1);
              out.close();
  
              ObjectInput in = new ObjectInputStream(
                  new ByteArrayInputStream(buffer.toByteArray())
              );
          Month m2 = (Month) in.readObject();
              in.close();
  
          assertEquals(m1, m2);
  
      }
  
      /**
       * Two objects that are equal are required to return the same hashCode.
       */
      @Test
      public void testHashcode() {
          Month m1 = new Month(2, 2003);
          Month m2 = new Month(2, 2003);
          assertEquals(m1, m2);
          int h1 = m1.hashCode();
          int h2 = m2.hashCode();
          assertEquals(h1, h2);
      }
  
      /**
       * The {@link Month} class is immutable, so should not be {@link Cloneable}.
       */
      @Test
      public void testNotCloneable() {
          Month m = new Month(2, 2003);
          assertFalse(m instanceof Cloneable);
      }
  
      /**
       * Some checks for the getFirstMillisecond() method.
       */
      @Test
      public void testGetFirstMillisecond() {
          Locale saved = Locale.getDefault();
          Locale.setDefault(Locale.UK);
          TimeZone savedZone = TimeZone.getDefault();
          TimeZone.setDefault(TimeZone.getTimeZone("Europe/London"));
          Month m = new Month(3, 1970);
          assertEquals(5094000000L, m.getFirstMillisecond());
          Locale.setDefault(saved);
          TimeZone.setDefault(savedZone);
      }
  
      /**
       * Some checks for the getFirstMillisecond(TimeZone) method.
       */
      @Test
      public void testGetFirstMillisecondWithTimeZone() {
          Month m = new Month(2, 1950);
          TimeZone zone = TimeZone.getTimeZone("America/Los_Angeles");
          Calendar c = new GregorianCalendar(zone);
          assertEquals(-628444800000L, m.getFirstMillisecond(c));
  
          // try null calendar
          try {
              m.getFirstMillisecond(null);
              fail("NullPointerException should have been thrown on null parameter");
          }
          catch (NullPointerException e) {
              //we expect to go in here
          }
      }
  
      /**
       * Some checks for the getFirstMillisecond(TimeZone) method.
       */
      @Test
      public void testGetFirstMillisecondWithCalendar() {
          Month m = new Month(1, 2001);
          GregorianCalendar calendar = new GregorianCalendar(Locale.GERMANY);
          calendar.setTimeZone(TimeZone.getTimeZone("Europe/Frankfurt"));
          assertEquals(978307200000L, m.getFirstMillisecond(calendar));
  
          // try null calendar
          try {
              m.getFirstMillisecond(null);
              fail("NullPointerException should have been thrown on null parameter");
          }
          catch (NullPointerException e) {
              // we expect to go in here
          }
      }
  
      /**
       * Some checks for the getLastMillisecond() method.
       */
      @Test
      public void testGetLastMillisecond() {
          Locale saved = Locale.getDefault();
          Locale.setDefault(Locale.UK);
          TimeZone savedZone = TimeZone.getDefault();
          TimeZone.setDefault(TimeZone.getTimeZone("Europe/London"));
          Month m = new Month(3, 1970);
          assertEquals(7772399999L, m.getLastMillisecond());
          Locale.setDefault(saved);
          TimeZone.setDefault(savedZone);
      }
  
      /**
       * Some checks for the getLastMillisecond(TimeZone) method.
       */
      @Test
      public void testGetLastMillisecondWithTimeZone() {
          Month m = new Month(2, 1950);
          TimeZone zone = TimeZone.getTimeZone("America/Los_Angeles");
          Calendar c = new GregorianCalendar(zone);
          assertEquals(-626025600001L, m.getLastMillisecond(c));
  
          // try null calendar
          try {
              m.getLastMillisecond(null);
              fail("NullPointerException should have been thrown on null parameter");
          }
          catch (NullPointerException e) {
              // we expect to go in here
          }
      }
  
      /**
       * Some checks for the getLastMillisecond(TimeZone) method.
       */
      @Test
      public void testGetLastMillisecondWithCalendar() {
          Month m = new Month(3, 2001);
          GregorianCalendar calendar = new GregorianCalendar(Locale.GERMANY);
          calendar.setTimeZone(TimeZone.getTimeZone("Europe/Frankfurt"));
          assertEquals(986083199999L, m.getLastMillisecond(calendar));
  
          // try null calendar
          try {
              m.getLastMillisecond(null);
              fail("NullPointerException should have been thrown on null parameter");
          }
          catch (NullPointerException e) {
              //we expect to go in here
          }
      }
  
      /**
       * Some checks for the getSerialIndex() method.
       */
      @Test
      public void testGetSerialIndex() {
          Month m = new Month(1, 2000);
          assertEquals(24001L, m.getSerialIndex());
          m = new Month(1, 1900);
          assertEquals(22801L, m.getSerialIndex());
      }
  
      /**
       * Some checks for the testNext() method.
       */
      @Test
      public void testNext() {
          Month m = new Month(12, 2000);
          m = (Month) m.next();
          assertEquals(new Year(2001), m.getYear());
          assertEquals(1, m.getMonth());
          m = new Month(12, 9999);
          assertNull(m.next());
      }
  
      /**
       * Some checks for the getStart() method.
       */
      @Test
      public void testGetStart() {
          Locale saved = Locale.getDefault();
          Locale.setDefault(Locale.ITALY);
          Calendar cal = Calendar.getInstance(Locale.ITALY);
          cal.set(2006, Calendar.MARCH, 1, 0, 0, 0);
          cal.set(Calendar.MILLISECOND, 0);
          Month m = new Month(3, 2006);
          assertEquals(cal.getTime(), m.getStart());
          Locale.setDefault(saved);
      }
  
      /**
       * Some checks for the getEnd() method.
       */
      @Test
      public void testGetEnd() {
          Locale saved = Locale.getDefault();
          Locale.setDefault(Locale.ITALY);
          Calendar cal = Calendar.getInstance(Locale.ITALY);
          cal.set(2006, Calendar.JANUARY, 31, 23, 59, 59);
          cal.set(Calendar.MILLISECOND, 999);
          Month m = new Month(1, 2006);
          assertEquals(cal.getTime(), m.getEnd());
          Locale.setDefault(saved);
      }
  
  }
  